FEATURE: change collation of all non-utf8_unicode_ci tables

database/migrations/2016_08_01_211830_ChangeCollationOfTables.php

@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+class ChangeCollationOfTables extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        $data = DB::select('
+                          SELECT 
+                            CONCAT("ALTER TABLE `", TABLE_NAME,"` CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci") AS mySQL 
+                          FROM INFORMATION_SCHEMA.TABLES 
+                          WHERE TABLE_SCHEMA="' . env('DB_DATABASE') . '" 
+                          AND TABLE_COLLATION!="utf8_unicode_ci" 
+                          AND TABLE_TYPE="BASE TABLE"
+                          ');
+
+        DB::statement('SET foreign_key_checks = 0');
+        foreach ($data as $query) {
+            DB::statement($query->mySQL);
+        }
+        DB::statement('SET foreign_key_checks = 1');
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        // nothing to do
+    }
+}